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| Maintenance and Service | ||
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| COMPLAINT | CAUSE | REMEDY |
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| ■ Voltage | • Check the voltage. See the limits on the preceding | ||
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| page. If not within limits, call an electrician. | ||
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| ■ Overload | • Check overload, if externally mounted. | ||
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| Replace if open. (If the compressor temperature is | ||
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| high, remove the overload, cool, and retest.) | ||
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| ■ Fan motor | • If not running, determine the cause. Replace if | ||
Compressor |
| required. | |||
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cycles on | ■ Condenser air flow | • Remove the cabinet. inspect the interior surface of the | |||
overload. | restriction | condenser; if restricted, clean carefully with a vacuum | |||
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| cleaner (do not damage fins) or brush. Clean the | ||
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| interior base before reassembling. | ||
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| ■ Condenser fins | • If condenser fins are closed over a large area on the | ||
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| (damaged) | coil surface, head pressures will increase, causing the | ||
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| compressor to cycle. Straighten the fins or replace the | ||
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| coil. | ||
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| ■ Capacitor | • Test capacitor. | ||
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| ■ Wiring | • Check the terminals. If loose, repair or replace. | ||
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| ■ Refrigerating system | • Check the system for a restriction. | ||
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| ■ Air filter | • If restricted, clean or replace. | ||
Insufficient | ■Exhaust damper door | • Close if open. | |||
cooling or heating | ■Unit undersized | • Determine if the unit is properly sized for the area to | |||
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| be cooled. | ||
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| ■Cross flow fan | • Check the set screw or clamp. If loose or missing, | ||
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| correct. If the blower or fan is hitting air guide, | ||
Excessive noise. |
| rearrange the air handling parts. | |||
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| ■Copper tubing | • Carefully rearrange tubing not to contact, compressor, | ||
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| shroud, and barrier. | ||
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ROOM AIR CONDITIONER VOLTAGE LIMITS
NAME PLATE RATING | MINIMUM | MAXIMUM |
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208/230 V | 187 V | 253 V |
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ENGLISH
Owner’s Manual 23